Alright, let's work through 1409 times 9240 step by step
1409 × 9240 = 9240 × (1409)
+ 9240 × 9 giving us 83160
+ 9240 × 00 that is equal 0
+ 9240 × 400 yielding 3696000
+ 9240 × 1000 which equals 9240000

= 13019160
